Transmission mechanism.



S. M. DICK.

TRANSMISSION MECHANISM.

APPLICATION FILED IAN. 22, I9I4.

I az ws. Patented July 3, 1917.

2 SHEETSSHEET I.

S. M. DICK.

TRANSMISSION MECHANISM.

APPLICATION FILED .IAN.22. 1914.

Patented July 3, 1917.

2 SHEETS-SHEET 2.

52 A 33 J7 C Q, N

v //V VE/YTQE AEJ'J fifl/VVEL map/67 SAMUEL Q 0 J IN APOLI-$ ;M NNE QTA;- SSelGl BeQF N ALEEWALI B WI 121 MAA ',1-:0En MI QNlE- BOLLSM E LN E QTA MI SIQ 7E NI5 Specifigationof Letters Patent.

Batented July 3; 191?.

Application filed JannaryZZ, 1914. Serial No. 813,674.;

To allrwhomz't may concern .1

Beuit lnaow-nvthat:I SAMUEL DICK? citizenlof the United States, resident of,

Minneapolis, county at Hennepin,-.State ofi" v Minnesota, have invented E certain a 'IIGW- ELIIQl useful Improvements in Transmission ;Mech-V.

anisms of which the followingvis; lspeciv The object of my invention isto provide;v

a mech anism by means ofv which; the power of a self-propelled vehicle can be applied directlyitouthe axle-without the use of "a:

chain or gear driving mechanism, the mechae nismapossessing;such a degree of -flexibility that the operator on driver of: the vehicles, such as an" automobile, can run the ear; at,

any speed from one or two milesoperihonr.

to forty or fifty miles A: fu'rthe1'.=0b.ject isto: provideta transmission; mechanism= of simple, but; strong; and din-able construction, .and one lwhielmcaln not: be :easily broken ortderanged.

Ar further object 1 is to: provide as simple 1 and: :convenient. =reversing means by which; a change in: direction: oflmovement" cam be easily and quickly 4 efleeted.

The invention; consists generally inva-J rious constructions and combinations, all asnhereinatter described: and-i particularly POlIlbQCbOtltzlllnthfi claims, a

In. the accompanying drawingsaformlng part of this specification,

Figln'eis a plan View of the portion of; '5 an automobile chassisu-with: my- -1n--' vention: applied thereto; 1 l

Fig; 2 31s a horizontal. sectional. View, lllUS trating l the .mechanism" on i the axle of; the CZtI'xp;

Fig-3 is. .atsect-ionalt View on' thelllne of Fig; 2,.

Figntisla detalltsectional mew, showing. the menersingrmechanism lllultS raised on 1n operative.position Figl 5 isiaisectional .v-iewtonl the llineiywy ofnFig: 4;, e

Fig. 6; is a --detail; seet-ional" View of the dniving cone and: the beaningetherefor Fig-7 isia View, partiallyrinisection illnse tinting a modified; construction; showing an.- other dorm I ,ortype. of; reversing: means.) a

In the (drawing; 2 and =3 lrepresent the rseo-t tions of ant-axle, placed end: to end: and pro? vided "wvith i-suitable bearings 4t: JlIlt-EL housing 5;: Carrying wheels; (6 tare anountedzzon these axle sect-ionsvinIany.suitable-way 7'wrepres sents a-cone fa'ced dishhaving a hub 8-thjat is-splined on theaxlesection 3,: and pro-- vided with the usual shifter lever 9 pivoted atMlOlinlthehousingb.v Aysinailar cone 7 =1 hash ihub ll splined on the-axle section-2 and moved back and Y forth thereon by means.

of a shifiten lever of substantially the same construction as. eClGSOI'lbGfl and which I will indicate: by-thel same reference numeral;-

Theseshiften levers are provided with L arms 12 mounted; to: lap by oneanoth'em as indi cated" inaFig. 1, and formingci'anks by" means ofwhich .the. SEtlCLlQ'VG-LS can be rocked tomovie the cone-faced disks back and: forthoni theaX-le sections. The hub 11 has a bearingllili'thereon for the diskzld whichiis provided with a doubleicone faceand iswidle onfreeito revolveonthe hub 11;. independentlvaof the cone diskfl Thefunction of this-double faced disk will "hereinafter ap,

pear w 15.:isadriv1ng cone having a stem 16'1that- 1s. tsplined within al-hollow drive shaft 17 extending to asuitable source-of power, not.

the disks? and. 145,: where -the drive ,conerwillt be locked-until. such: time as it, is .desired to reverse the direction; of; movement; The arms-12mm connected by links QOWit-h an operating; rod, :21 which extends to a upoint. convenient to the. 1 drivens seat so that when the driving cone. has, been; adjusted.- to the desired: position for! 1 operating the machine, thetshiftenleverswtl may be! oscillatedito move the cones 7 and 7 toward one another ntilwthei-faices of the disks -7""and: laaare in frictional engagement, with. the driving cone.

Betweenthe disks/Wand. 14 are two idle cones22 carried Lbyspindles 23,Which' at their inner ends straddlethe hub 8 and are arranged to. slide at. their outer ends upon Webs 24 .Which projectinwardly from the housing; 5.. The function-of these idle cones is. to reverse the direction of movement of the 1 .disk, 7* with respect to the disk 14 and thereby :cause th disks 7' and 7% to travel in the same di1'ect-ion.- These-idle cones, being carried" by the housing, Will i always be: in

tically noiseless.

frictional engagement with the surfaces of the disks 7 and 14c, moving back and forth on the axle section with these disks when the shifter levers are operated. Obviously,- the speed of the vehicle can be varied by changing the position of the cone 15 with respect to the frictional surfaces of the disks 7 and 14. The driver-will first decide the speed desired and set the driving-cone 15';

accordingly and lock the cone in that position where it will revolve continuously. The

disks 7 and 14: will then be moved into frictional engagement with this cone and the power will be transmitted therefrom to the auxiliary sections without the use of any gears or belts. This driving cone and the surfaces of the disks will be of sufficientarea and the degree of lateral pressure will be "sufficient to hold the friction surfaces together without slipping, thereby permit ting the use of a cone with a comparatively soft surface, such as leather, rawhide, fiber, or other suitable material which will mainnections between the disks 7 and 14 and the driving cone and cause the direction of move ment of these disks and the axle sections on which they are mounted to be reversed. The hubs 25 are preferably provided with weights 29 which normally hold the arms 27 in a raised, inoperative position, as indi cated in Fig. 5, where the rolls 28 will be out of contact with the friction disks. Arms 30 depend from said hubs and operating rods 31 extend from said arms to the forward portion of the machine, where they can be conveniently operated to tilt the arms 27 to an operative position whenever it is desired to reverse the transmission mecha nism. 5 i I In the operation of this transmission mechanism, the driving cone 15 is moved to a point between the friction disks, the degree of movement depending upon the speed desired. The friction disks are then moved into contact with the cone for the forward drive of the machine. If a change of speed is desired, the friction disks are separated, the position of the cone changed, and-the disks again moved .into engagement with it. The power will be applied uniformly toboth axle sectionsand the operation of the transmission mechanism will be smooth and prac- Whenever desired, the

reversed;

In some instances I may prefer to dispense with the oscillating reversing rolls 28' flnClPfOVLClB an extension 32 of the driving cone spindle mounted to slide in a bearing 33 on the housing upon the" opposite side. of the-cut or independent axle sectionsfrom the driving cone 15. Upon this extension 32 Imount. a cone 34. that is also on the opposite side of the axle sections fromthe driving cone and arranged to contact with the surfaces of the friction. disks 7 and 14: when the driving cone is out of contact with these surfaces, as indicated in Fig. 7 This construction'will obviously result in the reversal of the direction of movement of the disks 7 and 14 and drive. the machine backward. I 7

In various ways the details of construe tion herein shown and described may be modified and still be within the scope of my invention.

1 claim as my invention:

1. A power transmission mechanism comprising axle sections, friction disks splined thereon,'means' for moving said disks. to ward and from one another, an idle friction disk mounted to turn freely on said axle sections and having a frictional driving connection withone of said first named disks, a frictional driving cone mounted torevolve between said idle friction disk and the other frictional driving disk, the contact of said driving'cone with said other frictional driving disk and said idledisk operating to revolve both of said frictional driving disks in the same direction,

2. A power transmission mechanism comprising axle sections, frictional driven disks splined thereon and having freedom of .movement toward and from one another, a

driving cone mountedto revolve between said drivendisks and capable of adjustment toward or from the axis of said disks to vary the speed thereof, and means for moving said disks simultaneously into or out of driving position with respect to said driving cone and means interposed between one of said disks and said cone for causing said disks to revolvein the same direction.

3. A power transmission mechanism comprising axle sections, a driven disk splined thereon, a second driven disk also splined on said axle sections and having a hub thereon,- an idle disk! loosely'mounted on said hub, saiddisks having cone faced friction surfaces, idle' cones interposed between said second drivendisk and said idle disk, a driving cone mounted-to revolve between said disks, and means for moving said driven disks toward one another to engage said first named disk and said idle disk with said driving cone simultaneously.

l. A power transmission mechanism comprising axle sections, driven disks splined thereon, a driving cone mounted to revolve between said disks, means for moving said disks simultaneously into driving connection with said cone, and a reversing mechanism also interposed between said disks and having a driving connection therewith.

5. A power transmission mechanism comprising aXle sections, frictional driven disks mounted thereon, a driving cone mounted to revolve between said disks, means for moving said friction disks toward or from said cone, and anti-friction reversing rolls mounted to swing between said driven disks and said cone and for driving connection with the surfaces thereof and means for causing said driven disks to revolve in the same direction.

6. A power transmission mechanism comprising axle sections, frictional driven disks mounted thereon, a driving cone mounted to revolve between said disks, means for moving said friction disks toward or from said cone, means for causing said disks to revolve in the same direction, weighted arms pivotallv supported upon opposite sides of said cone and adapted to swing in vertical planes, anti-friction reversing rolls carried by said arms and adapted to drop down between said cone and said disks for reversing the direction -of revolution of said disks, and means for tilting said arms to raise or lower said rolls.

7 A power transmission mechanism comprising axle sections, frictional driven disks splined thereon and having freedom of movement toward and from one another and provided with cone-faced bearing surfaces, a driving cone mounted to revolve between said driven disks and movable longitudinally toward and from said axle to vary its point of contact with said disks, an idle friction disk having a bearing on one of said driven disks and interposed between it and said cone, means between said idle friction disk and one of said driven disks for reversing their direction of movement, and means for moving said disks toward said cone and engaging said idle disk and one of said driven disks with the surface of said cone, for the purpose specified.

8. A power transmission mechanism comprisingvaxle sections, driven disks mounted thereon, a. driving cone mounted to revolve between said disks, means interposed between said driving cone and one of said disks for causing said disks to revolve in the same direction, and a reversing means interposed between said cone and disks,

9. A power transmission mechanism comprising revolving members, driven disks mounted thereon for movement toward and from each other, a driving cone mounted to revolve between said disks and means concentric with said driven disks for causing said disks to revolve in the same direction.

In witness whereof, I have hereunto set my hand this 13th day of J a-nuary, 1914.

SAMUEL M. DICK.

Witnesses:

EDWARD A. PAUL, GENEVIEVE E. Somnvsnn.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

